Simply reuse: Homogeneous palladium catalysts are effective and attractive tools for advanced organic synthesis (see example). Compound 1 belongs to a new class of ligands that enable recycling of the precious‐metal catalyst directly from the reaction without any heterogenization.
Ring size and nothing else matters: unusual regioselectivity of alkyne hydration by NHC gold(<scp>i</scp>) complexes
作者:Sergey A. Rzhevskiy、Anna N. Philippova、Gleb A. Chesnokov、Alexandra A. Ageshina、Lidiya I. Minaeva、Maxim A. Topchiy、Mikhail S. Nechaev、Andrey F. Asachenko
DOI:10.1039/d1cc01837j
日期:——
We have investigated the role of ring sizes and substituents in NHC ligands in some (NHC)Au(I) complexes in the hydration of internal alkynes. Despite the fact that using (NHC)Au(I) complexes in the hydration of diarylacetylenes leads to Markovnikov-type products, the precise tuning of ligands allows changing the regioselectivity in arylalkylacetylene hydration to the anti-Markovnikov-type.